Fastener for can-closures.



S. B. THOMAS. FASTENEB. FOR GAN GLOSURES.

APPLICATION FILED NOV. 11, 1908.

Patented Dec. 28, 1909.

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SAMUEL BVTHGIVIAS, OF MANCHESTER, NEW HAMPSHIRE.

FASTENER FDR CANCLOSURES.-

Specification of Letters Patent. Patented DQQ, $8, Jlfiflfii.

Application filed November 11, 1908.- Serial No. 462,172.

T 0 all whom it may concern:

Be it known that I, SAMUEL B. THOMAS, citizen of the United States,residing at Manchester, in the county of Hillsboro and State of NewHampshire, have invented certain new and useful Improvements inFasteners for Can-Closures, of which the following is a specification.

This invention contemplates the construction and arrangement of afastener for can or other receptacle closures and is particularlydesigned to retain the closure in its proper position to close thereceptable and prevent the injurious action of air upon the contents.

The invention comprises essentially a clamping bar pivotally secured tothe receptacle closure and formed at its opposite extremities with jawsdesigned to engage a flange or head carried by the receptacle, and thebar operating in a slot formed in the closure, when properlymanipulated, is brought into or out of a clamping or operative positionupon the receptacle.

For a full understanding of the invention and the merits thereof andalso to acquire a knowledge of the details of construction and of themeans for effecting the result, reference is to be had to the followingdescription and accompanying drawings, in which:

Figure 1 is a side elevation of the receptacle with the closure andfastener illustrated in a closed or clamped position. Fig. 2 is a topplan view illustrating the movement of the clamping bar from an inopersativc to an operative position' Fig. 3 is a top view partially insection illustrating the position of the clamping bar in an operative.position. Fig. 4- is a vertical sectional view of the receptacle,closure, and clamping bar assembled.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

Referring to the drawings, the numeral 1 designates a receptacle of anycharacter and for the purpose of illustration is shown as a plaincylindrical shell upon which a bead or outwardly projecting flange 2 isformed or secured in any desired manner. The receptacle closure 3 isshown as adapted to fit upon the receptacle and is formed with a raisedannular portion 4 and deflected downwardly at'its rim to partiallyextend over the bead 2 as indicated at 5. may be of any desired shape toproperly fit upon the receptacle 1 and is preferably con structed ofmetal possessing sufficient resiliency to permit the raised annularportion to be slightly deflected upon the application of pressure whenplaniped in position upon said receptacle.

To more completely close the receptacle and to promote the sanitarycondition thereof both as regards the exclusion of air and foreignmatter, a card board disk or layer 6 and an inner layer of wax paper 7are preferably interposed between the closure and receptacle and firmlyheld inposition whensaid closure is clamped upon the receptacle.

The closure 3 tion. are preferably destroyed upon refilling thereceptacle and such procedure is especially advisable when milk or otherrecognizcd germ conductor is contained within said receptacle. p

A clamping bar 8 is pivotally secured at its middle to the closure 3 bya pin 9 and said bar is formed with upwardly curved portions 10 designedas finger pieces by which the jaw extremities 11 are moved into or outof engagement with the head 9. of the receptacle 1. The pivot pin 9 uponwhich the clamping bar 8 ismounted operates in a slot 12 formed in theraised portion 4 of the closure 3 and the head 13 of said pin ispermitted to move within the space formed be tween said raised portionof the closure and cardboard disk (3 (Fig. 4). The jaw extremities 11 ofthe clamping bar as shown, extend around the edge of the closure 3 andas illustrated in Fig. 2 said clamping bar is drawn toward the edge ofthe closure to disengage said jaws from the receptacle bead or flange 2as indicated by the dotted parallel position of the bar.

In the practical operation of the fastener, the closure 3 containing thedisks 6 and 7 is placed upon the receptacle, the pivot pin' 9 andclamping bar 8 having first been moved to the dotted line. position ofFig. Said bar is then moved to an operative or clamping position at thecenter of the closure (Fig. 2), and by manipulation of the finger pieceslO, is given a quarter turn to the position illustrated in Fig. In thisposition the closure is securelylocked upon the receptacle andaccidental disengagement of the clamping bar is prevented by the-changedrelative positions -of ,the slot 12 and said bar.

The aws 11' sufiiciently overhang the edge of the closure to ermitforced engagement =with' the receptac e bead 2', and as before and forpurposes of illustration, is appliedto a common form of closure andreceptacle best adapted to intelligently display the invention.

Having thus described the invention, what is claimed as new is 1. Thecombination with a closure, of a clamping bar and a pivotal connectionat the middle of the barengaging with the closure and movable along adefinite line to and from the rim of the closure, said bar having arotative movement on said pivotal connection in a plane parallel to theplane of the 'closure, said pivotal connection permitting the bar to be,turned at right angles ,to the direction of said line.

2. The combination with a closure, of a clamping bar pivotally connectedto the upper face of said closure for rotative movement in a planeparallel therewith, and means for permitting a movement of said bar in adiametrical lin'e transverse to the closure and in one direction only,whereby the bar may be turned to a position in alinement with said line,to prevent said movement, or intoa direction at right angles to saidline to permit a disengagement of the clamping bar with a vessel.

3. The combination with a receptacle anda closure therefor, of aclamping bar engageable with the receptacle to hold the closure inplace, a pivotal stud on the bar engaging with the closure and means onthe closure 1for guiding the stud along a definite radial 4. Thecombination with a rec eptacle anda closure therefor, of a clamping barhaving its ends adapted to engage the receptacle, a stud mounted'on thebar, and pivotally but shifta-bly connectimqv the clamping bar to theclosure, and means for guiding the move,- ment of the stud in itsengagement with the closure toward or from the center of said closure toeifect a clamping position of said bar, said means thereby permittingthe relative positions of said bar.

5. The combination with a receptacle and a closure therefor, the latterprovided with a radial slot, of a clamping bar, a stud mounted on theclamping bar and pivotally connecting the clamping bar to the closure,

said stud projecting into the slot and being gaged osition of theclamping bar.

wardly and inwardly turned ends adapted to closure whereby an engagingand disengaging position of the clamping bar is effected.

6. The combination with a receptacle, and a closure therefor, of aclampin bar having 7 its ends engageablewith the wa ls of the receptacle to hold the closure in place, and a stud shiftably engaged withthe closure-for radial movement therein, said stud; havin pivotalengagement with the middle of the clamping bar.

7, The combination with a closure rovided with a slot extending radiallyrom the center of said closure toward the rim, of a clamping bar, and apin pivotally connecting the clamping barto the closure and movab ymounted in said slot, whereby said pin may be moved toward or from thecenter of said closure to effect a clamped or disen- 8. T e combinationwith a receptacle having an annular flange at its upper end, a closurefor thereceptacle having a radial slot extending from the center of theclosure outwardly, a cla'mping'bar havin its end portions downwardly andinwardFy turned to engage with the'fiange of-the receptacle, and a studmounted in the slot of the closure and having pivotal engagement withthe I clamping bar.

9. The combination with a receptacle having a flange at its upper endand a closure therefor having a radial slot extending from its center,of a clamping bar having down- 10C engage with the Han e of thereceptacle and a stud having an en arge'd head, the shank of the studprojecting up through the slot on the closure and pivotally engaged withthe clamping bar.

10. The combination with a receptacle having an annular flange at'itsupper end, of a closure for the same having a centrally embossedportion, the said embossed portion being radially slotted from thecenter of the closure, a stud having a head;- the shank of said studprojecting outward through said slot and the head thereof beingcontained in the embossed portion of the closure, a locking bar having aperforation surrounding said pin, the ends of the locking bar beingdownwardly and inwardly turned to engage with the annular flange of thereceptacle.

11. The combination with a receptacle having an outwardly turned, flangeat its upper end, of a closure comprising a covering plate having acentrally raisedportion slotted from the center of the closure radiallyoutward, a disk mounted within the closure below the centrally raisedportion, a pin having a head contained within the centrally raisedportion and a shank extending out of the slot therein, and a clamp barhav-' ing a perforation in its middle through which said pin passes, theends of said clamping her being downwardly bent and ing the radialshifting movement of the stud 1G extendlng beneath the flange on therecepi to 21 movement 1n one dn'eetlon only.

iaele. e r In testimony whereof I my signeiure 12. The comblnatlon wltha receptacle and 111 presence or two Witnesses.

a closure therefor, of a locking bar having 1 w: w T A *AM TPL B. Th1 MA9.

ns ends adapted to engage the receptacle, b L U S [d :1 stud hzn'lng arudlally shlftable engnge- W ltnessesz ment \\'1th the closure and aplvot-al enguge- J. B. CAVANAUGH,

ment with the locking bar, means for linnt- GEORGE A. WAGNER.

